<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
<script>
    // 对象的属性名扩展变量
    let name = 2;
    const Person = {
        ["s"+name]:"张三",
        age:10
    }
    console.log(Person);
</script>
</html>